JP3212650U - Light spot shape conversion structure of laser pointer - Google Patents

Abstract

The present invention provides a light spot shape conversion structure for a laser pointer that is simple in structure, easy to assemble, and low in cost. A light spot shape conversion structure of a laser pointer includes a tube body and a turntable. The tube body 1 is provided at one end of the laser pointer 3 and has an end face 12. The end face 12 has a perforation 13 and a pivot hole 14. A light emitting element 4 that emits laser light and is emitted from the perforations 13 is accommodated in the tube body 1. The turntable is pivotally attached to the pivot hole 14 of the end face 12 via the pivot 21, and extends in the radial direction so that a part thereof is exposed from the tube body 1. A plurality of deformation lenses corresponding to the perforations 13 are arranged on the turntable so that the shape of the light spot changes when the laser light passes through the deformation lens. [Selection] Figure 2

Description

  The present invention relates to a laser pointer, and more particularly to a light spot shape conversion structure of a laser pointer.

  The laser pointer is a tool used to point to a specific place at a lecture hall, etc., emits a laser beam to display a bright light spot on the screen, and clearly shows the position of the image displayed on the projector and the material on the poster. Can be pointed to. Some commercially available laser pointers can change the shape of the light spot depending on the required functionality and entertainment. Patent Document 1 has a stopper in which a perforated hole having a specific shape is formed. The stopper is movable. When the stopper is operated to displace the stopper into the laser beam path and the laser beam passes through the stopper, a light spot having a specific shape is obtained. In Patent Document 2, a stopper having a specific shape of a perforation is fixedly installed on the laser beam path, and the laser light emitting unit can be moved closer to or away from the stopper by operation, and is projected onto the stopper. When the area of the laser light changes and the projection area of the laser light is smaller than the perforation, the light spot becomes a round shape, and when the projection area of the laser light is larger than the perforation, the shape of the light spot becomes a specific shape. However, in Patent Document 1 and Patent Document 2 described above, the shape of the light spot can be changed, but only two types of a round shape and a specific shape can be selected, and the change is poor.

  Patent document 3 has a claw wheel turned by an internal gear, and the claw wheel has a plurality of perforations having different shapes. The claw wheel is located on the path of the laser beam and can be turned to change the position of the hole to correspond to the laser beam and change the light spot into various shapes, but the conventional structure is too complicated, There is a drawback that the manufacturing difficulty of parts such as gears is high and the manufacturing cost becomes too high. The laser pointer of Patent Document 4 is too complicated and has a highly accurate transmission mechanism, and the shape of the light spot is changed by a drum having perforations having different shapes, but the cost is too high as in the above-mentioned Patent Document There was a drawback.

  Further, in each of the above-mentioned patent documents, the light spot can be changed by operating a pivotable mechanism (for example, a gear, a barrel of a laser pointer, etc.). Because they are aligned, it is not easy to operate with one finger when the user holds the laser pointer with his hand.

Taiwan Utility Model Registration No. 354202 Taiwan Utility Model Registration No. 329995 Taiwan Utility Model Notice No. M333572 Taiwan Patent Notice No. I442091

  The main purpose of the present invention is that the rotating plate that changes the shape of the light spot protrudes outside the laser pointer, and the user can turn the rotating plate directly, so that the structure is easy to use. The object is to provide a light spot shape conversion structure for a laser pointer that is simple, easy to assemble, and low in cost.

FIG. 1 is a perspective view showing a light spot shape conversion structure of a laser pointer according to an embodiment of the present invention. FIG. 2 is an exploded perspective view showing a light spot shape conversion structure of a laser pointer according to an embodiment of the present invention. FIG. 3 is an explanatory diagram illustrating an operation state of the light spot shape conversion structure of the laser pointer according to the embodiment of the present invention. FIG. 4 is an explanatory diagram of a usage state of the light spot shape conversion structure for a laser pointer according to an embodiment of the present invention.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. Note that the present invention is not limited thereby.

  Please refer to FIG. 1 and FIG. As shown in FIGS. 1 and 2, the light spot shape conversion structure of a laser pointer according to an embodiment of the present invention includes at least a tubular body 1 and a turntable 2. The tube 1 is provided at one end of the laser pointer 3, the light emitting element 4 that emits laser light is housed inside, and the outside is covered with the decorative cover 5 so that the entire appearance of the laser pointer 3 is uniform. The tube body 1 is provided with a storage chamber 11 at one end and an end face 12. The end face 12 has a perforation 13 communicating with the inside of the tube 1, the laser beam is transmitted through the perforation 13, and a pivot hole 14 is formed in the end face 12. In the present embodiment, the perforation 13 is located at the center of the end face 12, and the pivot hole 14 is formed so as to be offset from the center of the end face 12.

  The turntable 2 is disposed in the storage chamber 11 and is pivotally attached to the pivot hole 14 via the pivot 21. Since the position of the pivot hole 14 is deviated from the center of the end surface 12, the rotating disk 2 is installed deviated from the center of the end surface 12. As shown in FIG. 3, the turntable 2 extends in the radial direction, a part thereof is exposed from the storage chamber 11, and is located in a part of the storage chamber 11. The pivots 21 mounted on the turntable 2 each have a deformable lens. The deformable lens sequentially corresponds to the perforations 13 as the turntable 2 turns, and the light spot changes when the laser light passes through the deformable lenses after being emitted from the perforations 13. The deformable lens according to the present embodiment includes a lens 22 in which the light spot is formed in a round shape after the laser beam is transmitted, a lens 23 in which the light spot is formed in a linear shape, and a light spot in an annular shape. A lens 24.

  An anti-slip pattern 25 is provided on the outer periphery of the above-described rotating disk 2 so that the user can easily perform a turning operation. The turntable 2 has a positioning mechanism. When one of the plurality of deformable lenses is turned to a position corresponding to the perforation 13, the turntable 2 is positioned. More specifically, the end face 12 is provided with a receiving hole 15 in which a spring 16 and a positioning steel ball 17 are disposed. The positioning steel ball 17 is always pressed to the outer top of the accommodation hole 15 by the spring 16. In addition, a plurality of positioning holes 26 in which the deformable lenses are installed are formed on one side facing the end face 12 of the turntable 2. As shown in FIG. 3, when the turntable 2 turns and one of the plurality of deformable lenses corresponds to the perforation 13, one positioning hole 26 also corresponds to the accommodation hole 15 at the same time, and the positioning steel ball 17 Is extruded and inserted into the positioning hole 26, and the turntable 2 is positioned.

  As can be seen from the above, the light spot shape conversion structure of the laser pointer of the present invention can be assembled easily and quickly, and the cost of materials and production can be greatly reduced. Further, since the appearance of the entire laser pointer 3 is not uniform at the same height, and a part of the rotating disk 2 protrudes from the tube 1, the user holds the laser pointer 3 with one hand as shown in FIG. The turntable 2 can be easily turned with only one finger, and the operation method is preferable in terms of ergonomics.

DESCRIPTION OF SYMBOLS 1 Tubular body 2 Turntable 3 Laser pointer 4 Light emitting element 5 Cosmetic cover 11 Accommodating chamber 12 End surface 13 Perforation 14 Pivoting hole 15 Accommodating hole 16 Spring 17 Positioning steel ball 21 Axis 22 Lens 23 Lens 24 Lens 25 Non-slip pattern 26 Positioning hole

Claims (2)

A light spot shape conversion structure of a laser pointer comprising a tube and a rotating disk,
The tube body is provided at one end of a laser pointer and has an end surface. The end surface has a perforation and a pivot hole. The tube body emits laser light and emits light from the perforation. The element is housed,
The turntable is pivotally attached to the pivot hole of the end face via a pivot, and extends in the radial direction and a part thereof is exposed from the tube body. A light spot shape conversion structure for a laser pointer, wherein a plurality of deformable lenses corresponding to the above are arranged, and the shape of the light spot changes when laser light passes through the deformable lens. The pivot hole is not located at the center of the end face,
The rotating disk is positioned off the center of the end face;
The perforation is located in the center of the end face;
A housing hole is formed in the end face, and a positioning member that is pressed by a spring is disposed in the housing hole,
A plurality of positioning holes corresponding to the positioning member after turning are formed on the turntable,
The deformable lens includes a lens in which the light spot is formed in a round shape, a lens in which the light spot is formed in a linear shape, and a lens in which the light spot is formed in an annular shape,
A non-slip pattern is provided on the outer periphery of the rotating disk,
The light spot shape conversion structure for a laser pointer according to claim 1, wherein an outer side of the tube is covered with a decorative cover.